UniKey is an input method editor (IME) for Vietnamese text . The core engine, the UniKey Vietnamese Input Method , is also the engine embedded in many Vietnamese software-based keyboards in Microsoft Windows , Android , Linux , macOS and iOS . UniKey is free and open source , and the source code for the UniKey Vietnamese Input Method is distributed under GNU General Public License . [ 1 ] UniKey supports a variety of Vietnamese character encodings , including UTF-8 , TCVN3 (ABC) , VIQR , VNI , VPS , VISCII , BK HCM1, and BK HCM2 , as well as Unicode -based decimal and hexadecimal NCRs for web editors. [ 4 ] Text may be input using TELEX , VNI, or VIQR . UniKey is minimalist and does not require additional libraries , allowing it to support Windows releases as far back as 9x . UniKey was developed by Phạm Kim Long [ vi ] beginning in 1994, while he was a student at the Hanoi University of Science and Technology , and privately distributed among his friends under the names TVNBK and LittleVnKey, before being released publicly for Microsoft Windows in 2000. [ 1 ] It gained popularity for encoding Vietnamese thanks to its speed, simplicity, and reliability, eventually becoming the most popular Windows-based Vietnamese IME. The core engine, the UniKey Vietnamese Input Method, is open source and was first released as a part of the X-Unikey Vietnamese keyboard for Linux in 2001. Since then, the engine has been integrated into the input methods in different operating systems and software frameworks. ibus-unikey, developed by Lê Quốc Tuấn using the UniKey engine, is widely used for Linux distributions . [ 1 ] From Mac OS X Leopard onwards, released in 2007, Apple has integrated the UniKey Vietnamese Input Method into the built-in Vietnamese input of macOS. Beginning with iOS 4.0 in 2010, the engine has also been integrated to the built-in Vietnamese keyboard in iOS. [ 5 ] 1 2 3 4 Huy An (25 March 2014). "Bộ gõ tiếng Việt phổ biến nhất đã ra đời thế nào?" [ How did the most popular Vietnamese input method editor come about? ] . VnEconomy (in Vietnamese). Vietnam Economic Times. Archived from the original on 5 July 2019 . Retrieved 30 March 2015 . ↑ "UniKey Software for Linux" . ↑ "UniKey cho macOS và iOS" . 1 2 "Hướng dẫn sử dụng UniKey 3.5" [ UniKey 3.5 User Guide ] . UniKey (in Vietnamese). April 2004. Archived from the original on 20 February 2015 . Retrieved 30 March 2015 . ↑ Huy An (26 March 2014). " 'Trận chiến' mới của cha đẻ Unikey" [ A new "battle" for the father of Unikey ] . VnEconomy (in Vietnamese). Vietnam Economic Times . Retrieved 30 March 2015 . Official website Input Method Manager (IMM32) Text Services Framework (TSF) Intelligent Input Bus (IBus) Internet/Intranet Input Method Framework (IIIMF) Smart Common Input Method (SCIM) X Input Method (XIM) Google Input Tools

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